Out-of-bounds Write Affecting netcdf-parallel package, versions <1:4.9.0-1


Severity

Recommended
0.0
medium
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
0.92% (60th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ECHOLATEST-NETCDFPARALLEL-19539992
  • published5 Sept 2026
  • disclosed15 Apr 2021

Introduced: 15 Apr 2021

CVE-2021-31229  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Echo:latest netcdf-parallel to version 1:4.9.0-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream netcdf-parallel package and not the netcdf-parallel package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

An issue was discovered in libezxml.a in ezXML 0.8.6. The function ezxml_internal_dtd() performs incorrect memory handling while parsing crafted XML files, which leads to an out-of-bounds write of a one byte constant.

CVSS Base Scores

version 3.1